The Master had seen Lady Tanya's seething face only once before, on the day she had come to him after noticing the strange coincidences that had taken place in her life.
She had confronted him on that day and this was also when he had seen her furious expressions for the very first time.
Before this incident, Lady Tanya lived up to the name he used to address her.
She was a calm individual who approached him when she had doubts about her skills and her future.
Once she gained his insight and words of wisdom, she left only to return when she needed his advice next.
Their interactions had always been civil and respectful but on the day she had confronted him about her sister's death, he had witnessed the fury that accompanied her grief for having lost the only relative she had in this world.
However, after letting out her frustrations, she had returned to her usual self.